Answer: kidder

AnswerCrossword Clue
KIDDERRidiculer: Slang.
kidderfail to admit the truth to they're kidding themselves
kiddermake fun of
kidderengage in good-humored fooling or horseplay often used with around
kidderto deceive as a joke it's the truth; I wouldn't kid you
kidderone who kids (to tease (to make fun of))
KIDDEROne joking
KIDDEROne joshing around
KIDDERJoker
KIDDERLane of note
KIDDERJosher.
KIDDER"The Soul of a New Machine" author Tracy
KIDDERLois Lane portrayer Margot
KIDDEROne pulling your leg
KIDDEROne who joshes around
KIDDERLeg-puller
KIDDEROne who isn't serious